Clinical Trial of Efficacy and Safety of ММН-407 in the Treatment of Influenza in Outpatient Adults

Influenza Clinical Trial

Official title: A Multicenter, Placebo-controlled, Double-blind, Randomized Clinical Trial in Parallel Groups to Evaluate the Efficacy and Safety of ММН-407 in the Treatment of Influenza in Outpatient Adults

Status Suspended

Clinical Trial Summary

The main purpose of this study is:

• to evaluate the efficacy and safety of MMH-407 in the treatment of influenza in outpatient adults.

Clinical Trial Description

Design: a multicenter, placebo-controlled, double-blind, randomized clinical trial in parallel groups.

The study will include both male and female patients aged 18-64 years with clinical signs of influenza within the first 24 hours of the onset of illness.

The influenza diagnosis must be supported by a positive rapid test (detection of influenza virus antigens in nasal epithelial cells). After the patients provide signed Participant Information Sheet and Informed Consent form, their medical history and body temperature will be recorded and physical examination and rapid diagnostic test performed. Patients who test positive will be assessed for 7 influenza-associated symptoms: cough, sore throat, headache, nasal congestion, feverishness or chills, muscle or joint pain, fatigue.

4-point Flu Symptom Severity scale will be used: 0 = no symptom; 1 = mild symptom; 2 = moderate symptom; 3 = severe symptom.

Nasopharyngeal swabs will be obtained from these patients for subsequent real-time reverse transcription polymerase chain reaction (RT-PCR) influenza A/B testing and laboratory tests performed.

If a patient meets all inclusion criteria and does not meet any of the exclusion criteria at Visit 1 (Day 1), he/she will be randomized into one of the treatment groups: Group 1: ММН-407 for 5 days, or Group 2: Placebo on the ММН-407 regimen for 5 days.

The patients will use electronic patient diaries to daily record their morning and evening axillary temperature (taken using a Geratherm mercury-free thermometer) and severity of 7 influenza-associated symptoms (using the Flu Symptom Severity scale). In addition to this, the patients will record doses of antipyretic drugs taken (when applicable) and any worsening of their health status (when applicable, to assess treatment safety and collect adverse events data).

In total, patients will be observed for 14 days (screening and randomization - up to 24 hours, treatment - 5 days, subsequent observation - up to 2 days; and a follow-up 'telephone' visit - Day 14).

During the study, 3 visits from patient to the physician's office and a follow-up telephone visit will be accomplished: 1) patient visits - Days 1, 3 and 7 (Visits 1, 2, and 3) at the medical centre; 2) telephone visit from the physician (Visit 4) - Day 14.

During Visits 2 and 3, the physician will perform a physical examination, record the changes in patients' symptoms and the use of concomitant medications and check the completion of patient diaries. At Visit 2, nasopharyngeal swabs for RT-PCR will be collected. Visit 3 will involve an assessment of treatment compliance and laboratory tests. The telephone visit is intended to provide information on a patient's health status, presence/absence of secondary bacterial complications and the use of antibiotics.

During the study, subjects will be allowed to use symptomatic therapy and medications for their co-morbidities, except for the medicines listed in the "Prohibited Concomitant Medications" section. ;

Related Conditions & MeSH terms

• Influenza
• Influenza, Human

• NCT number: NCT04250311
• Study type: Interventional
• Source: Materia Medica Holding
• Status: Suspended
• Phase: Phase 3
• Start date: December 12, 2019
• Completion date: December 2024